Question

What is meant by heterolytic cleavage of covalent bond ?

Answer 1

$<b><h2>Heterolytic Cleavage</b></h2>$

When a covalent bond joining two atoms A and B breaks in such a way that both the electrons of the covalent bond ( i.e., shared pair ) are taken away by one of the bonded atoms, the mode of bond cleavage is called Heterolytic Cleavage.

$<b><h3>Examples –</b></h3>$

( a ) $\tt{CH_3 - SCH_3}$

{ See the 1st Attachment }

( °•° S being bigger in size than C can displace the -ve charge more effectively. )



( b ) $\tt{CH_3 - CN}$

{ See the 2nd Attachment }

( °•° CN is more electronegative than $\sf{CH_3}$ )



( c ) $\tt{Cu - CH_3}$

{ See the 3rd Attachment }

( °•° Cu is more electronegative than C )